ASHARELAH ăsh’ ə re’ lə (אֲשַׂרְאֵ֖לָה; KJV ASARELAH). One of the sons of Asaph who “prophesied under the direction of the king” (1 Chron 25:2). Called Jesharelah in v. 14.

International Standard Bible Encyclopedia (1915)

One of the Asaphites appointed by David to the temple service (1Ch 25:2); in 1Ch 25:14 he is called Jesharelah. The latter element in both forms may be (’el) "God," but the meaning of the former part in the first form is doubtful. Thes. compares ’acar, "to bind," "whom God has bound (by a vow)."